LM2596SX-5.0/NOPB by Texas Instruments | DC to DC Converters | Avnet ASIA
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LM2596SX-5.0/NOPB

Texas Instruments

Conv DC-DC Single Inv/Step Down 4.5V to 40V 6-Pin(5+Tab) TO-263 T/R

Manufacturer Part #: LM2596SX-5.0/NOPB

Alternate Part #: LM2596SX-5.0/NOPB


RoHS Compliant

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Information

The LM2596 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 3A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version.

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation , and a fixed-frequency oscillator.

The LM2596 series operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 5-lead TO-220 package with several different lead bend options, and a 5-lead TO-263 surface mount package.

A standard series of inductors are available from several different manufacturers optimized for use with the LM2596 series. This feature greatly simplifies the design of switch-mode power supplies.

Other features include a ensured ±4% tolerance on output voltage under specified input voltage and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring typically 80 μA standby current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions. Patent Number 5,382,918.

 

Key Features

  • 3.3V, 5V, 12V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range, 1.2V to 37V ±4% Max Over Line and Load Conditions
  • Available in TO-220 and TO-263 Packages
  • Ensured 3A Output Load Current
  • Input Voltage Range Up to 40V
  • Requires Only 4 External Components
  • Excellent Line and Load Regulation Specifications
  • 150 kHz Fixed Frequency Internal Oscillator
  • TTL Shutdown Capability
  • Low Power Standby Mode, IQ Typically 80 μA
  • High Efficiency
  • Uses Readily Available Standard Inductors
  • Thermal Shutdown and Current Limit Protection
  • Technical Attributes

    Description
    Value
    Find similar Parts
    Switching Frequency
    173 kHz
    Pin Count
    6
    Product Dimensions
    10.16 x 8.64 x 4.57 mm
    Efficiency
    80 %
    Output Voltage
    5 V
    Max Processing Temp
    245
    Mounting
    Surface Mount
    MSL Level
    3
    Lead Finish
    Tin
    Switching Regulator
    Yes
    Maximum Output Current
    3 A
    Minimum Input Voltage
    4.5 V
    Operating Supply Voltage
    4.5 to 40 V
    Maximum Input Voltage
    40 V
    Type
    Inverting|Step Down
    Number of Outputs
    1
    Supplier Package
    TO-263
    Output Type
    Fixed
    Operating Temperature
    -40 to 125 °C

    ECCN / UNSPSC

    Description
    Value
    ECCN:
    EAR99
    SCHEDULE B:
    8542390000

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